Ventilating attachment for water-closet bowls.



' Patented W. SCHULTZ. VENTILATING ATTACHMENT Fon WATER cLosET owL's.

(Application filed Tune 11, 1902.)

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UNiTnn STATES ATENT rtree.

CHARLES W. SCHULTZ, OF DETROIT, MICHIGAN, ASSIGNOR OF TWO-THIRDS TO JAMES C. KENNEY, OF DETROIT, MICHIGAN, AND RICHARD ETHEL- BERT SCHULTZ, OF WINDSOR, ONTARIO, CANADA.

VENTILATING ATTACHMENT FOR WATER-,CLOSET BOWLS.

SPECIFICATION forming part of Let-ters Patent No. 712,207,1dated October v28, 1902. Application led June 11, 1902. Serial No. 111,110. (No model.)

- To all whom t may concern.-

Be it known that I, CHARLES W. SoHULTz, a citizen ofthe United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Ventilating Attachments for Water-Closet Bowlsrand I declare the following to be a full, clear, and exact description of the invention, such as will enable oth- Io ers skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specilication.

This invention relates to ventilators, and I5 has for its object an improved attachment to be used especially in connection with the bowls of Water-closets, for the purpose of producing a forced draft ventilation thereof.

In the drawings, Figure 1 is a side elevazo tion showing the general arrangement of the attachment and its connection with the bowl. Fig. 2 is a longitudinal vertical section of the attachment. Fig. 3 is a cross-section at the line QJ x of Fig. 1. Fig. i is a perspective of the spray-rose.

A indicates the bowl of the closet, provided with the usual local vent connection 1.

The attachment comprises a tube 2, which leads from the vent-opening 1 to the vent- 3o pipe V, leading to and through'the roof. Thepipe extends horizontally backward from the opening 1 to an elbow 3. From the elbow 3 a short section 4 rises vertically to the elbow 5, from which there is a horizontal connection into the vent-pipe V. The pipe 2 is of com'- paratively large diameter, generally about two inches.

Within the pipe 2 is a second pipe 7, held in place by ring diaphragme 8 and 8a, which, 4o except for apertures hereinafter mentioned, extend completely1 across the annular chamber thatsurrounds the pipe 7 and is inside of the pipe 2. The pipe 7 is preferably placed near that part of the pipe 2 which lies to the top when the device is in position and at that part which lies to the bottom. There is through each diaphragm 8 and 8 an opening which affords a passage for the return of water that has been driven longitudinally 5o through the pipe 7.

The elbow 3 is preferably made nearly rectangular and without a curve on its external or larger bend, and it is preferably lined with a cushioning metal, such as sheet-lead or some' similar metal, against which water driven 5 5 through the pipe 7 may strike and which will deaden the sound-vibrations that would otherwise be produced by the striking of the water against the pipe or the Walls of the elbow.

`The rectangular arrangement of the elbow is 6o to prevent the water from being directed upward or reliected upward through the pipe L1. At that end ofthe pipe 2 which lies next to thebowl there is inserted through the walls of the pipe 2 an inleading water-pipe 9, which 65 has at its terminal an annular nozzle formed of two concentricrpipes 10 and 1l, the chamber between which is closedin at that end which lies toward the bowl and is closed at the opposite end by a piece through which 7o there are a number of very small perforations, and the nozzle thus formed Ythrows ay spray composed of a number of small streams. Through'the nozzle inside the pipe 10 is'an 4open passage-way for air, and between the 75 pipe 11 and the walls of the pipe 7 is anannular passage for air. Through the walls of the pipe 7, oppositethe plate 12, are bored a number of largeopenings 13, through which additional air may pass. These openings are 8o between the'diaphragm 8 and the bowl end of the pipe. The bowl end of the pipe is arranged to engage with the bowl in any approved way. Y

The pipe-9 Aleads from a valve-casing 11,in 85 which there is a valve 15, that preferably seats upward or with the flow of the water into the pipe 9. The valve 15 is provided with a valve-stem 16, that leads out through a suitable packing-box and is arranged to be 9o actuated by a bent lever 17, the end of which engages over a lever-arm 18, that is secured to the seat 19, the engagement being arranged and adjusted so that the last part of the seat movement toward the bowl brings the two levers into engagement and actuates the valve; but the push-rod 17 and lever 18 are not in pivotal connection, and the seatmay be lifted without affecting the valve 15 after the valve l5 has once reached itsseat. The valve 15 roo is under tension of the spring 20, which normally tends to lift it to its seat, and it is arranged to seat with the flowing Water.

The Ventilating action is induced by throwing a spray of Water under the hydrostatic pressure that exists in the pipe 9a through the nozzle 12. The water thrown in a spray or in jets through the nozzle 12 carries with it the air, producing a iiow of air through the pipe, and this causes an iniiow into the section 2 from the bowl A and an outiiow into the Ventilating-pipe V, and such iiow continues and rapidly removes the air that was contained in the bowl, driving the Water into and through the pipe 7 and into the chamber in elbow 3, where it falls by gravity to the bottom of the pipe and runs back by gravity into the bowl.

l. In a Ventilating attachment for closetbowls, in combination with asuitable casingpipe extending from the vent of the bowl to the vent-pipe, and having in its length a horizontal portion and a vertical portion connected by an elbow, a spray-chamber, a returnpassage for water used for spraying purposes, a spray-nozzle arranged to deliver a spray into the spray-chamber, and means for controlling the admission of waterinto said spraynozzle, substantially as described.

2. In a Ventilating attachment for closetbowls, the combination of a casing, a spraychamber longitudinal of the casing and spaced therefrom, a nozzle-fixture arranged to admit water central to the spray-chamber, a waterreturn channel located between the spraychamber and the casing, and a water-gathering chamber to the end of the spray-chamber, substantially as described.

3. In a Ventilating attachment for closetbowls, the combination of a casing, a spraychamber longitudinal of said casing, a waterreturn passage parallel to said spray-chamber, an annular spray-nozzle located concentric with the spray-ch amber and provided with passages central thereto and external thereto, substantially as described.

4. In a Ventilating attachment for closetbowls, the combination of a casing, a spraychamber arranged within and longitudinal of the casing, a cushioning means arranged to dampen the noise-vibrations, a return-passage for Water, and a spray-nozzle, substantially as described.

In testimony whereof I sign this speccation in the presence of two witnesses.

CHARLES W. SCHULTZ.

Witnesses:

MAY E. Ko'rr, CHARLES F. BURTON. 

